Cheapest priced copy (Foundations Commander): $0.35 at Card Kingdom, near mint, their price list as of .
Carnelian Orb of Dragonkind 
Artifact · Common · Commander Legends: Battle for Baldur's Gate · #166
{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
5 printings · $0.35 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 166 | Common | $0.49 | $1.99 |
| Foundations Commander | 143 | Common | $0.35 | — |
| Foundations | 534 | Common | $1.49 | — |
| Foundations | 759 | Common | — | — |
| Foundations Jumpstart | 131 | Common | $0.69 | — |
4 rulings from Wizards of the Coast
- 10 June 2022An instant or sorcery spell is not a creature spell, even if that spell creates Dragon creature tokens.
- 10 June 2022If the mana is spent on a non-Dragon spell that becomes a Dragon later in the turn, that creature won't have haste.
- 10 June 2022If the mana from Carnelian Orb of Dragonkind is spent to pay any part of the Dragon creature spell's cost, including an alternative or additional cost, the Dragon will gain haste until end of turn.
- 10 June 2022The mana created by Carnelian Orb of Dragonkind can be spent on anything, not just Dragon creature spells.